oj.uz

Submission #164061

# Submission time Handle Problem Language Result Execution time Memory
164061 2019-11-17T08:37:44 Z georgerapeanu Construction of Highway (JOI18_construction) C++11
16 / 100
 2000 ms 23376 KB 
#include <cstdio>
#include <map>
#include <vector>
#include <algorithm>

using namespace std;

const int NMAX = 1e5;

int n;
int ferikire[NMAX + 5];

pair<int,int> edges[NMAX + 5];

vector<int> graph[NMAX + 5];
int fst[NMAX + 5];
int snd[NMAX + 5];
int euler_len;
int lant_father[NMAX + 5];
int lvl[NMAX + 5];
int when[NMAX + 5];

void predfs(int nod,int tata){
    lvl[nod] = 1 + lvl[tata];
    fst[nod] = ++euler_len;
    for(auto it:graph[nod]){
        if(it == tata){
            continue;
        }
        predfs(it,nod);
    }
    snd[nod] = euler_len;
}

pair<int,int> aint[4 * NMAX + 5];

void update(int nod,int st,int dr,const int &pos,const pair<int,int> &val){
    if(dr < pos || st > pos){
        return;
    }

    if(st == dr){
        aint[nod] = val;
        return ;
    }

    int mid = (st + dr) / 2;

    update(nod * 2,st,mid,pos,val);
    update(nod * 2 + 1,mid + 1,dr,pos,val);

    if(when[aint[2 * nod].second] > when[aint[2 * nod + 1].second]){
        aint[nod] = aint[2 * nod];
    }
    else{
        aint[nod] = aint[2 * nod + 1];
    }
}

pair<int,int> query(int nod,int st,int dr,int l,int r){
    if(l > dr || r < st){
        return {0,-1};
    }

    if(l <= st && dr <= r){
        return aint[nod];
    }

    int mid = (st + dr) / 2;

    pair<int,int> a = query(nod * 2,st,mid,l,r);
    pair<int,int> b = query(nod * 2 + 1,mid + 1,dr,l,r);

    if(when[a.second] > when[b.second]){
        return a;
    }
    else{
        return b;
    }

}

int aib[NMAX + 5];
map<int,int> to_norm;

void aib_update(int pos,int val){
    for(;pos <= NMAX;pos += (-pos) & pos){
        aib[pos] += val;
    }
}

int aib_query(int pos){
    int ans = 0;

    for(;pos;pos -= (-pos) & pos){
        ans += aib[pos];
    }

    return ans;
}

int main(){

    scanf("%d",&n);

    for(int i = 1;i <= n;i++){
        scanf("%d",&ferikire[i]);
        to_norm[ferikire[i]] = 1;
    }

    int last = 0;

    for(auto &it:to_norm){
        it.second = ++last;
    }

    when[1] = 1;
    for(int i = 1;i < n;i++){
        int x,y;
        scanf("%d %d",&x,&y);
        graph[x].push_back(y);
        graph[y].push_back(x);
        edges[i] = {x,y};
        when[y] = i + 1;
    }

    predfs(1,0);

    update(1,1,n,fst[1],{ferikire[1],1});
    lant_father[1] = 0;

    for(int i = 1;i < n;i++){
        int nod = edges[i].first;
        long long ans = 0;
        vector<pair<int,int> > to_clear;
        while(nod != 0){
            pair<int,int> _lant = query(1,1,n,fst[nod],snd[nod]);
            ans += 1LL * (lvl[nod] - lvl[lant_father[_lant.second]]) * aib_query(to_norm[_lant.first] - 1);
            aib_update(to_norm[_lant.first],lvl[nod] - lvl[lant_father[_lant.second]]);
            to_clear.push_back({to_norm[_lant.first],lvl[lant_father[_lant.second]] - lvl[nod]});
            int lst_nod = nod;
            nod = lant_father[_lant.second];
            lant_father[_lant.second] = lst_nod;
        }
        update(1,1,n,fst[edges[i].second],{ferikire[edges[i].second],edges[i].second});
        lant_father[edges[i].second] = 0;
        for(auto it:to_clear){
            aib_update(it.first,it.second);
        }
        printf("%lld\n",ans);
    }



    return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:104:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
construction.cpp:107:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&ferikire[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~
construction.cpp:120:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&x,&y);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2684 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2808 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 4 ms 2780 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 6 ms 2708 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 7 ms 2780 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2876 KB Output is correct
21 Correct 6 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2680 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2812 KB Output is correct
28 Correct 5 ms 2768 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 7 ms 2808 KB Output is correct
31 Correct 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2812 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2680 KB Output is correct
37 Correct 5 ms 2744 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2940 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2684 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2808 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 4 ms 2780 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 6 ms 2708 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 7 ms 2780 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2876 KB Output is correct
21 Correct 6 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2680 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2812 KB Output is correct
28 Correct 5 ms 2768 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 7 ms 2808 KB Output is correct
31 Correct 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2812 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2680 KB Output is correct
37 Correct 5 ms 2744 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2940 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct
45 Correct 7 ms 2936 KB Output is correct
46 Correct 20 ms 3320 KB Output is correct
47 Correct 20 ms 3320 KB Output is correct
48 Correct 20 ms 3352 KB Output is correct
49 Correct 12 ms 3448 KB Output is correct
50 Correct 12 ms 3496 KB Output is correct
51 Correct 12 ms 3448 KB Output is correct
52 Correct 12 ms 3448 KB Output is correct
53 Correct 13 ms 3452 KB Output is correct
54 Correct 15 ms 3448 KB Output is correct
55 Correct 14 ms 3412 KB Output is correct
56 Correct 15 ms 3320 KB Output is correct
57 Correct 29 ms 3324 KB Output is correct
58 Correct 35 ms 3320 KB Output is correct
59 Correct 34 ms 3320 KB Output is correct
60 Correct 34 ms 3320 KB Output is correct
61 Correct 14 ms 3448 KB Output is correct
62 Correct 13 ms 3448 KB Output is correct
63 Correct 14 ms 3448 KB Output is correct
64 Correct 13 ms 3064 KB Output is correct
65 Correct 14 ms 3064 KB Output is correct
66 Correct 18 ms 3064 KB Output is correct
67 Correct 20 ms 3192 KB Output is correct
68 Correct 9 ms 3320 KB Output is correct
69 Correct 12 ms 3448 KB Output is correct
70 Correct 10 ms 3196 KB Output is correct
71 Correct 11 ms 3224 KB Output is correct
72 Correct 29 ms 3320 KB Output is correct
73 Correct 22 ms 3064 KB Output is correct
74 Correct 11 ms 3192 KB Output is correct
75 Correct 13 ms 3320 KB Output is correct
76 Correct 13 ms 3396 KB Output is correct
77 Correct 12 ms 3320 KB Output is correct
78 Correct 10 ms 3064 KB Output is correct
79 Correct 10 ms 3064 KB Output is correct
80 Correct 11 ms 3176 KB Output is correct
81 Correct 14 ms 3320 KB Output is correct
82 Correct 14 ms 3320 KB Output is correct
83 Correct 14 ms 3320 KB Output is correct
84 Correct 11 ms 3064 KB Output is correct
85 Correct 11 ms 3064 KB Output is correct
86 Correct 12 ms 3064 KB Output is correct

Subtask #3
0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2684 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2808 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 4 ms 2780 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 6 ms 2708 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 7 ms 2780 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2876 KB Output is correct
21 Correct 6 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2680 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2812 KB Output is correct
28 Correct 5 ms 2768 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 7 ms 2808 KB Output is correct
31 Correct 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2812 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2680 KB Output is correct
37 Correct 5 ms 2744 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2940 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct
45 Correct 7 ms 2936 KB Output is correct
46 Correct 20 ms 3320 KB Output is correct
47 Correct 20 ms 3320 KB Output is correct
48 Correct 20 ms 3352 KB Output is correct
49 Correct 12 ms 3448 KB Output is correct
50 Correct 12 ms 3496 KB Output is correct
51 Correct 12 ms 3448 KB Output is correct
52 Correct 12 ms 3448 KB Output is correct
53 Correct 13 ms 3452 KB Output is correct
54 Correct 15 ms 3448 KB Output is correct
55 Correct 14 ms 3412 KB Output is correct
56 Correct 15 ms 3320 KB Output is correct
57 Correct 29 ms 3324 KB Output is correct
58 Correct 35 ms 3320 KB Output is correct
59 Correct 34 ms 3320 KB Output is correct
60 Correct 34 ms 3320 KB Output is correct
61 Correct 14 ms 3448 KB Output is correct
62 Correct 13 ms 3448 KB Output is correct
63 Correct 14 ms 3448 KB Output is correct
64 Correct 13 ms 3064 KB Output is correct
65 Correct 14 ms 3064 KB Output is correct
66 Correct 18 ms 3064 KB Output is correct
67 Correct 20 ms 3192 KB Output is correct
68 Correct 9 ms 3320 KB Output is correct
69 Correct 12 ms 3448 KB Output is correct
70 Correct 10 ms 3196 KB Output is correct
71 Correct 11 ms 3224 KB Output is correct
72 Correct 29 ms 3320 KB Output is correct
73 Correct 22 ms 3064 KB Output is correct
74 Correct 11 ms 3192 KB Output is correct
75 Correct 13 ms 3320 KB Output is correct
76 Correct 13 ms 3396 KB Output is correct
77 Correct 12 ms 3320 KB Output is correct
78 Correct 10 ms 3064 KB Output is correct
79 Correct 10 ms 3064 KB Output is correct
80 Correct 11 ms 3176 KB Output is correct
81 Correct 14 ms 3320 KB Output is correct
82 Correct 14 ms 3320 KB Output is correct
83 Correct 14 ms 3320 KB Output is correct
84 Correct 11 ms 3064 KB Output is correct
85 Correct 11 ms 3064 KB Output is correct
86 Correct 12 ms 3064 KB Output is correct
87 Correct 57 ms 4344 KB Output is correct
88 Correct 224 ms 6776 KB Output is correct
89 Correct 946 ms 16764 KB Output is correct
90 Correct 1037 ms 18700 KB Output is correct
91 Correct 988 ms 18708 KB Output is correct
92 Correct 346 ms 23160 KB Output is correct
93 Correct 337 ms 23084 KB Output is correct
94 Correct 339 ms 23376 KB Output is correct
95 Correct 340 ms 21072 KB Output is correct
96 Correct 428 ms 21364 KB Output is correct
97 Correct 436 ms 21600 KB Output is correct
98 Correct 436 ms 21492 KB Output is correct
99 Correct 411 ms 20928 KB Output is correct
100 Correct 1510 ms 18420 KB Output is correct
101 Correct 1954 ms 18708 KB Output is correct
102 Execution timed out 2016 ms 18752 KB Time limit exceeded
103 Halted 0 ms 0 KB -